6,213 research outputs found
Fabrication of submicron planar Gunn diode
We present, for the first time, the fabrication
process for a submicron planar Gunn diode in In<sub>0.53</sub>Ga<sub>0.47</sub>As on an InP substrate operating at 265 GHz. A novel two stage lift off method has been developed to achieve a submicron gaps between
contacts down to 135 nm with widths up to 120 μm
The Ingalls-Thomas Bijections
Given a finite acyclic quiver Q with path algebra kQ, Ingalls and Thomas have
exhibited a bijection between the set of Morita equivalence classes of
support-tilting modules and the set of thick subcategories of mod kQ and they
have collected a large number of further bijections with these sets. We add
some additional bijections and show that all these bijections hold for
arbitrary hereditary artin algebras. The proofs presented here seem to be of
interest also in the special case of the path algebra of a quiver.Comment: This is a modified version of an appendix which was written for the
paper "The numbers of support-tilting modules for a Dynkin algebra" (see
arXiv:1403.5827v1
Effects of arbitrary shear stress on unsteady free convection flow of Casson fluid past a vertical plate
This article studies the unsteady free flow of a Casson fluid over an infinite vertical plate with constant wall temperature. The Problem is modelled by employing equations of continuity, momentum and energy. Exact solutions for the dimensionless velocity and temperature are established by the Laplace transform technique. The solutions that have been obtained, uncommon in the literature, satisfy all imposed initial and boundary conditions and can generate huge number of solutions for any motion problem with technical relevance of this type. For illustration, some special cases are considered. The velocity solutions are presented as a sum of convective and mechanical parts. Pertinent results are discussed and displayed graphically
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